18700245

素因数分解:

$3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{2789}}^1$

素因数の和:2949

約数の個数: 24

約数和(自身を含む): 32643000

約数和(自身を除く): 13942755

約数列:

[1, 3, 5, 9, 15, 45, 149, 447, 745, 1341, 2235, 2789, 6705, 8367, 13945, 25101, 41835, 125505, 415561, 1246683, 2077805, 3740049, 6233415, 18700245]

約数ペア:

[(1, 18700245), (3, 6233415), (5, 3740049), (9, 2077805), (15, 1246683), (45, 415561), (149, 125505), (447, 41835), (745, 25101), (1341, 13945), (2235, 8367), (2789, 6705)]